Humminbird HELIX 8® CHIRP MEGA SI+ GPS G4N CHO Display Only
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Humminbird HELIX 8® CHIRP MEGA SI+ GPS G4N CHO Display Only Product Description
Imagine gliding across the water, your boat humming softly as the sun rises, and suddenly, the screen lights up with razor-sharp images of fish schools darting around submerged structures. That's the power of the Humminbird HELIX 8 CHIRP MEGA SI+ GPS G4N CHO at your fingertips. This control head only unit delivers pro-level performance without the transducer, giving you the freedom to customize your setup for any fishing style—from trolling deep reservoirs to chasing bass in shallow bays.
Experience Unmatched Clarity with MEGA Side and Down Imaging+
At the heart of this fish finder lies MEGA Side Imaging+ and MEGA Down Imaging+, pushing the boundaries of what's visible beneath the surface. Side Imaging+ scans up to 200 feet on each side of your boat with 20% more detail and 60% greater range than standard MEGA Imaging. Spot hidden cribs, drop-offs, or weed edges that hold trophy fish, all in stunning real-time motion with MEGA Live.
Down Imaging+ dives straight below, revealing fish and structure down to 200 feet with incredible precision. Forget fuzzy returns—see individual baitfish separating from predators, helping you decide exactly where to drop your line.
Dual Spectrum CHIRP Sonar: Search Wide or Zoom In Tight
Dual Spectrum CHIRP gives you two sonar modes in one: Wide Mode sweeps massive coverage for locating fish fast, while Narrow Mode pinpoints the finest details on structure and bottom composition. Powered by advanced Low-Q CHIRP technology, it paints vivid fish arches and reveals bottom hardness, so you know if that mark is a rock pile or a muddy flat loaded with walleye.
Navigate and Map Like a Pro with Built-in GPS and Basemap
Precision GPS tracks your position down to the inch, marking hotspots with up to 2,750 waypoints. The Humminbird Basemap covers over 10,000 freshwater lakes and U.S. coastal areas, highlighting contours, hazards, marinas, and depth markers for confident navigation.
Take it further with AutoChart Live—map contours, hardness, and vegetation in real-time as you motor around. Store eight hours onboard or expand with Micro SD cards. Pair with premium charts for scrollable lake lists and highlighted depths that turn any water into your personal fishing atlas.
Build Your Ultimate One-Boat Network
This CHO model shines in networked setups. Ethernet lets you daisy-chain multiple units or add radar and i-Pilot Link for trolling motors. Bluetooth connects to shallow water anchors and downriggers for wireless control, plus smartphone notifications and updates via the FishSmart app. NMEA 2000 pulls in boat data, weather, and more, while Wi-Fi enables seamless sharing.
Perfect for Minn Kota owners—plug into built-in MEGA Imaging trolling motors or add MEGA 360 for 360-degree views. Share sonar across your fleet for tournament-winning intel without extra heads.
Why Go Control Head Only? Total Rigging Flexibility
The CHO design means no bundled transducer, so you select exactly what fits your boat and water type. Existing Humminbird owners can network in effortlessly. Keypad controls keep operations simple even with gloves on or in rough seas—soft keys and intuitive menus get you to views fast.
Waterproof build, 8-inch high-res LCD (1024x600), and compact dimensions (12" x 7" x 4.13") make mounting a breeze with the included gimbal bracket and power cable.
Pro Angler Tips to Maximize Your HELIX 8
- Start sessions with Wide CHIRP to cover ground, then switch to MEGA SI+ for surgical strikes on structure.
- Use AutoChart Live on new waters—mark changes in vegetation to predict fish movement as seasons shift.
- Network with a trolling motor for spot-lock on prime humps, freeing you to focus on casting.
- Customize split-screen views: pair Down Imaging with GPS for instant waypoint drops on fish.
- Interpret bottom hardness—firm returns often signal rock with big smallmouth, soft for crappie beds.
What's Included for Quick Setup
- Control head with 8-inch display
- Power cable
- Gimbal mounting bracket
Frequently Asked Questions
What does CHO mean for the Humminbird HELIX 8 CHIRP MEGA SI+ GPS G4N?
CHO stands for Control Head Only, meaning it arrives without a transducer. This lets you choose the perfect transducer for your boat, like those with Minn Kota built-in MEGA Imaging or add-ons such as MEGA 360.
How far does MEGA Side Imaging+ reach on this model?
MEGA Side Imaging+ extends up to 200 feet on either side of your boat, delivering 20% more detail and 60% more range than standard MEGA Side Imaging for spotting distant structure.
Is this fish finder compatible with other Humminbird accessories?
Yes, it supports Ethernet, Bluetooth, Wi-Fi, and NMEA 2000 networking, making it part of the One-Boat Network with Minn Kota trolling motors, Cannon downriggers, and more.
What mapping features does it offer?
Built-in GPS with Humminbird Basemap covers 10,000+ lakes and coasts. AutoChart Live creates custom maps of depth, hardness, and vegetation in real-time, with Micro SD expansion.
Can I use premium charts with this unit?
Absolutely—it's compatible with LakeMaster, CoastMaster, and Navionics charts for detailed contours, depth shading, and lake-specific insights.
What's the display like for tough conditions?
The 8-inch LCD boasts 1024x600 resolution, is fully waterproof, and uses reliable keypad controls with soft keys for easy navigation in rain, waves, or glare.
How does Dual Spectrum CHIRP help find fish?
It offers Wide Mode for broad searches showing fish arches and Narrow Mode for structure details, spreading frequencies for sharper, more accurate returns than traditional sonar.
The HELIX 8 CHIRP MSI+ GPS G4N CHO features an 8 Inch display, MEGA Side Imaging+, MEGA Down Imaging+, Dual Spectrum CHIRP Sonar and internal GPS with Humminbird Basemap. As with all HELIX G4N models, this HELIX 8 standard features such as AutoChart Live, Wi-Fi and NMEA 2000 (R), in addition to Bluetooth (R) and Ethernet networking for compatibility with the One-Boat Network ™ family of products from Humminbird, Minn Kota and Cannon. This CHO (Control Head Only) model allows you to pick the right accessory transducer for your needs, features compatibility with Minn Kota Built-in MEGA Imaging trolling motors.
Humminbird 4113501CHO Attributes
- Display Size: 8 Inch LCD
- Display Resolution: 1024 X 600 Pixels
- Overall Dimensions: 12 Inch Length X 7 Inch Height X 4.13 Inch Depth
- Sonar Compatibility: Dual Spectrum CHIRP Sonar
- With Built-In GPS: Yes
- Used To: Use To Find Fish And Identify Buoys/ Day Markers/ Hazards/ Marinas/ Contours/ Depth Markers
- Interface: Keypad
- Waterproof: Yes
- Point Of Interest: 2750 Waypoints
- SD Card Storage: Micro SD Card
Humminbird 4113501CHO Features & Benefits
- MEGA Live Delivers The Clarity And Detail Of MEGA Imaging In Live-Action, Allowing Anglers To See Fish And Structure In Real-Time
- MEGA Side And Down Imaging+ Extends Out To 200 Feet On Either Side, Plus 20 Percent More Detail Than MEGA Side And Down Imaging
- CHIRP Stands For “Compressed High Intensity Radar Pulse”: By Covering A Wide Range Of Frequencies, CHIRP Produces More Accurate, More Detailed Returns Of Fish, Structure And The Bottom
- Dual Spectrum CHIRP Sonar: By Covering A Wide Range Of Frequencies, CHIRP Produces More Accurate, More Detailed Returns Of Fish, Structure And The Bottom
- Precision GPS Provides An Accurate Position Fix, Meaning More Accurate Waypoints And Boat Positioning For Better Fishing
- Humminbird Basemap: Based On Freshwater Data From LakeMaster And NOAA, These Maps Provide A Clear View Of Underwater Terrain
- Map The Water As You Drive The Boat And Keep The Data Stored On Your Fish Finder Or Import It Into The AutoChart PC Program
- LakeMaster Lake Maps Features Unrivaled, Easy-To-Read Contours, Highlighted Depth Ranges, Scrollable Lake Lists And More
- SmartStrike Cards Combine High Definition LakeMaster Lake Map Data And Extensive Search Algorithms To Help You Pattern And Locate Fish At Any Time Of The Year
- Limited 2 Year Warranty
Humminbird 4113501CHO Installation Instructions
- HUM_productmanual_HELIX_OPSTART_532403E.pdf
- HUM_productmanual_IG_HLX_9-10-12_532405.pdf
- HUM_productmanual_OPS_HELIX_SRS_532509E.pdf
Humminbird 4113501CHO Warranties
HELIX 8® CHIRP MEGA SI+ GPS G4N CHO Display Only
The HELIX 8 CHIRP MSI+ GPS G4N CHO features an 8" display, MEGA Side Imaging+, MEGA Down Imaging+, Dual Spectrum CHIRP Sonar and internal GPS with Humminbird Basemap. As with all HELIX G4N models, this HELIX 8 includes standard features such as AutoChart Live, Wi-Fi and NMEA 2000®, in addition to Bluetooth® and Ethernet networking for compatibility with the One-Boat Network™ family of products from Humminbird, Minn Kota and Cannon. This CHO (Control Head Only) model allows you to pick the right accessory transducer for your needs, including compatibility with Minn Kota Built-in MEGA Imaging trolling motors.
Features:
- Control Head Only Model: This model does not include a transducer. This CHO model is a great choice for those looking to connect to connect to Built-in MEGA Imaging on Minn Kota trolling motors, accessory transducer options like MEGA 360 Imaging, or share sonar data from an existing Humminbird Ethernet network.
- Keypad control: Master HELIX at the touch of a button. Access the preloaded views from the user-friendly menu system, operated by soft key controls that allow you to reliably operate your fish finder in any condition.
- MEGA Side Imaging+: See the world below like never before with a crystal-clear Side Imaging viewing out to 200 feet on either side of your boat. You'll unlock more fish and structure with 20% more detail and 60% more range capability than MEGA Side Imaging sonar.
- MEGA Down Imaging+: Get unprecedented underwater clarity with Down Imaging coverage down to 200 feet below your boat. You'll unlock more fish and structure with 20% more detail and 60% more depth capability than MEGA Down Imaging sonar.
- Dual Spectrum CHIRP sonar: Before you cast, know what's down there thanks to highly-detailed fish arches and a clear view of fish-holding structure and the bottom. Powered by our proprietary, Low-Q CHIRP transducer, Dual Spectrum offers two ways to search; Wide Mode for maximum coverage and Narrow Mode for focusing on the slightest detail.
- Internal GPS and Humminbird Basemap: Our enhanced basemap provides you with a clear view of underwater terrain and surrounding points of interest so you can fish and navigate with total confidence. Identify buoys, day markers, hazards, marinas, contours, depth markers and much, much more. Includes charts of more than 10,000 lakes, plus coastal coverage for the continental U.S.
- Premium Chart Compatible: Humminbird provides the most complete offering of premium chart options to anglers everywhere. Get a complete view of the world below with optional charts from Humminbird's LakeMaster® and CoastMaster™ products, as well as your choice of compatible Navionics® charts.
- AutoChart Live: Create real-time maps of your fishing spots, with access to patented Humminbird® LakeMaster® features. Map depth contours, bottom hardness and vegetation as you drive your boat. Comes standard with eight (8) hours of built-in recording time and is compatible with AutoChart Zero Line SD cards for virtually-endless AutoChart Live mapping capacity.
- One-Boat Network Compatible: Many Humminbird models seamlessly integrate and communicate with Minn Kota and Cannon products to unlock more features and capabilities for anglers everywhere. Make the more of your time on the water with the exclusive boat control and fish-catching features of the One-Boat Network.
- Ethernet Networking: High-speed Ethernet allows you to build a powerful, professional-grade fishing system. Easily connect multiple fish finders, or upgrade to add-on technologies like Minn Kota i-Pilot Link and Humminbird CHIRP Radar.
- Bluetooth: Take control right from the screen of your Humminbird with wireless communication to compatible Talon and Raptor shallow water anchors, as well as Cannon Optimum downriggers. Additional features include wireless software updates from the Humminbird FishSmart App and display of smart phone notifications on your Humminbird.
- NMEA 2000 networking built-in: Connect an accessory NMEA 2000 network to your control head for even more information; from boat performance to weather and water conditions, make sense of it all with NMEA 2000 networking.
- Includes control head, power cable, gimbal mounting bracket. This CHO model does not include a transducer, allowing you to pick the best fit for your rigging needs.
- 2-Year Limited Warranty
Control head model only: This model does not include a sensor. For users who want to connect to the built-in MEGA imaging, MEGA 360 Imaging and other accessory transducers on the Minn Kota drag motor, or share sonar data from existing Humminbird Ethernet, this CHO model is a good choice. s Choice. Keyboard control: You can master HELIX by touching the buttons. Access the pre-loaded view from the user-friendly menu system, which is operated by soft key controls, allowing you to operate the fishfinder reliably in any situation. MEGA Side Imaging +: See the world below from an unprecedented perspective. The clear silhouette can be viewed 200 feet from both sides of the ship. Compared with MEGA Side Imaging sonar, you can unlock more fish and buildings, increase details by 20%, and increase range finding ability by 60%. MEGA Downward Imaging+: Downward imaging coverage is as low as 200 feet below the ship, achieving unprecedented underwater clarity. Compared with MEGA Down Imaging sonar, you can release more fish and buildings, increase details by 20%, and increase depth capability by 60%. Built-in NMEA 2000 network: Connect the accessory NMEA 2000 network to your control head to get more information; from ship performance to weather and water conditions, you can make full use of it with the NMEA 2000 network.
Humminbird HELIX 8® CHIRP MEGA SI+ GPS G4N CHO Display Only Related Products
Humminbird NMEA 2000 T-Connector - MaleFrequently Asked Questions (FAQ) About Humminbird HELIX 8® CHIRP MEGA SI+ GPS G4N CHO Display Only
Who is the Humminbird?How to describe Humminbird HELIX 8® CHIRP MEGA SI+ GPS G4N CHO Display Only?
What is the screen size of the product?
Transducer included to the product?
What is the weight of the product?
Is this product waterproof?
What is the display size of the product?
What is the controlling interface of the product?
What is the cartography brand of product?
Is this product is touchscreen?
Who is the Humminbird?
How to describe Humminbird HELIX 8® CHIRP MEGA SI+ GPS G4N CHO Display Only?
- 8" display
- MEGA Side Imaging+, MEGA Down Imaging+, Dual Spectrum CHIRP Sonar
- Internal GPS with Humminbird Basemap
- The HELIX 8 CHIRP MSI+ GPS G4N CHO features an 8" display, MEGA Side Imaging+, MEGA Down Imaging+, Dual Spectrum CHIRP Sonar and internal GPS with Humminbird Basemap.
- The HELIX 8 CHIRP MSI+ GPS G4N CHO is the perfect boat fish finder for anglers who want to explore shallow waters or cover large areas of water quickly.
- This unit also has a built-in flasher that can be activated manually or automatically when it
The Humminbird HELIX 8 CHIRP MSI+ GPS G4N is a feature-packed fish finder that offers a variety of innovative technologies to help you find fish. With its high-speed, high-resolution MEGA Imaging, you can see details in the water column like never before. It also features CHIRP sonar for excellent target separation and an easy-to-use interface that makes it simple to get
What is the screen size of the product?
- 8" display
- MEGA Side Imaging+, MEGA Down Imaging+, Dual Spectrum CHIRP Sonar
- Internal GPS with Humminbird Basemap
- The HELIX 8 CHIRP MSI+ GPS G4N CHO features an 8" display, MEGA Side Imaging+, MEGA Down Imaging+, Dual Spectrum CHIRP Sonar and internal GPS with Humminbird Basemap.
- The HELIX 8 CHIRP MSI+ GPS G4N CHO is the perfect boat fish finder for anglers who want to explore shallow waters or cover large areas of water quickly.
- This unit also has a built-in flasher that can be activated manually or automatically when it
- The most advanced sonar available, with 8-channels and 4,000 watts PTP power output
- Advanced GPS mapping system with dual frequency (800/200 kHz)
- Built-in MEGA Imaging for crystal clear imaging in shallow water
- Available without a transducer for those looking to connect to an existing system
- With MEGA Imaging, you can see the detail of what's below the surface.
- The 8" display is bright and easy to read, even in bright sunlight.
- Humminbird's exclusive CHIRP technology provides incredible target separation and clarity for confident fishing decisions.
- GPS technology gives you the ability to mark waypoints and record tracks with ease.
Transducer included to the product?
What is the weight of the product?
Is this product waterproof?
What is the display size of the product?
What is the controlling interface of the product?
What is the cartography brand of product?
Is this product is touchscreen?
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Humminbird HELIX 8® CHIRP MEGA SI+ GPS G4N CHO Display Only Technical Specifications
| Type: | |
|---|---|
| Vendor: |
Humminbird |
| Weight: |
7.45 lb |
| Transducer Included: |
No |
| Cartography Brand: |
Humminbird/Navionics |
| Screen Size: |
8" |
| Touchscreen: |
No |
| Product Brochure: |
Humminbird HELIX 8® CHIRP MEGA SI+ GPS G4N CHO Display Only User Reviews
Humminbird HELIX 8® CHIRP MEGA SI+ GPS G4N CHO Display Only Shipping & Return
| Shipping Weight: |
7.45 lb |
|---|---|
| Box Sizes: |
10.00 (h) x 11.00 (w) x 17.00 (l) |
| Cubic Feet: |
1870.0 |
| Returnable: |
Yes |
For detailed shipping policy please check our Shipping Policy and you can find our Return and Refund Policy here.














